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A144513
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a(n) = Sum((n+k+2)!/((n-k)!*k!*2^k),k=0..n).
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1
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2, 18, 162, 1670, 19980, 274932, 4296278, 75324762, 1466031690, 31386435410, 733391707752, 18578222154648, 507246285802802, 14851746921266010, 464244744007818090, 15431886798641124662, 543593886328031841828, 20228083875146926867932, 792934721766833544369830
(list; graph; refs; listen; history; internal format)
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